For an A.P. if t8 = 6, d = – 2, then what is the value of a ? Question For an A.P. if t8 = 6, d = – 2, then what is the value of a ? in progress 0 Math Alaia 1 month 2021-08-17T22:11:58+00:00 2021-08-17T22:11:58+00:00 2 Answers 0 views 0

## Answers ( )

Answer:a=20

Step-by-step explanation:d=-2

t₈=6

a=?

t₈=a+7d [a-(n-1)d]

6=a+7×(-2)

6=a-14

a=20

GIVEN:For an A.P. if t8 = 6

d = – 2

TOFIND:value of a

FORMULA USED:SOLUTION:Tn = a + (n-1)dT8=a+(n-1)d6=a+(8–1)(–2)6=a+(7×–2)6 = a+(–14)6+14=a20=aANSWER=>please mark my answer as brainliest please ♥️